22091088 has 20 divisors (see below), whose sum is σ = 57068768. Its totient is φ = 7363680.

The previous prime is 22091077. The next prime is 22091117. The reversal of 22091088 is 88019022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230068 + ... + 230163.

Almost surely, 2^22091088 is an apocalyptic number.

It is an amenable number.

22091088 is an abundant number, since it is smaller than the sum of its proper divisors (34977680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22091088 is a wasteful number, since it uses less digits than its factorization.

22091088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460242 (or 460236 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 22091088 is about 4700.1157432557. The cubic root of 22091088 is about 280.5901159674.

The spelling of 22091088 in words is "twenty-two million, ninety-one thousand, eighty-eight".